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" The mineral is reduced to a very fine powder, mixed intimately with six times its weight of the artificial carbonate of baryta and exposed for an hour to a white heat. The ignited mass is dissolved in dilute muriatic acid, and the solution evaporated... "
A Manual of Chemistry, on the Basis of Professor Brande's: Containing the ... - Página 458
1828 - 619 páginas
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Elements of Chemistry: Including the Recent Discoveries and Doctrines of the ...

Edward Turner - 1828 - 516 páginas
...containing a fixed alkali. — When the object is to determine the quantity of fixed alkali, such as potassa or soda, it is necessary to abstain from the employment...to redness in a crucible of platinum, in order to espel the salts of ammonia. The residue is the chloride of potassium or sodium. In this analysis, it...
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Elements of Chemistry: Including the Recent Discoveries and Doctrines of the ...

Edward Turner - 1829 - 508 páginas
...of ammonia is added ; and the insoluble matters, consisting of silica, carbonate of baryta, and'all the constituents of the mineral, excepting the fixed alkali, are collected on a filter. 2 Q 2 The clear solution is evaporated to dryness in a porcelain capsule, and the dry mass is heated...
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Elements of Chemistry: Including the Recent Discoveries and Doctrines of the ...

Edward Turner - 1830 - 616 páginas
...taken up in hot water; an excess of ihe carbonate of ammonia is added; and the insoluble matter.", consisting of silica, carbonate of baryta, and all...porcelain capsule, and the dry mass is heated to redness it> a crucible of platinum, in order to expel the salts of ammonia. The residue is the chloiide of...
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Elements of Chemistry: In which the Recent Discoveries in the Science are ...

John Lee Comstock - 1831 - 368 páginas
...a fxed alkali. — When the object is to determine the quantity of a fixed alkali, such as potassa or soda, it is necessary to abstain from the employment...crucible of platinum, in order to expel the salts of amonia. The residue is the chloride of potassium or sodium. In this analysis, it generally happens...
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Elements of Chemistry: In which the Recent Discoveries in the Science are ...

John Lee Comstock - 1831 - 366 páginas
...containing ajixed alkali. — When the object is to determine the quantity of fixed alkali, such as potassa or soda, it is necessary to abstain from the employment...excepting the fixed alkali, are collected on a filter. The dear solution is evaporated to dryness in a porcelain capsule, and the dry mass is heated to redness...
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Elements of Chemistry: Including the Recent Discoveries and Doctrines of the ...

Edward Turner - 1832 - 638 páginas
...the solution evaporated to perfect dryness. The soluble parts are taken up in hot water; an excess of carbonate of ammonia is added ; and the insoluble...collected on a filter. The clear solution is evaporated to drynes» in a porcelain capsule, and the dry mass is heated to redness in a crucible of platinum, in...
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Elements of Chemistry: In which the Recent Discoveries in the Science are ...

John Lee Comstock - 1836 - 366 páginas
...dilute muriatic acid, and the so' lution evaporated to perfect dryness. The soluble parts are vaken up in hot water ; an excess of the carbonate of ammonia...excepting the fixed alkali, are collected on a filter. Th« clear solution is evaporated to dryness in a porcelain capsule, and the dry mass is heated to...
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Elements of Chemistry: Including the Recent Discoveries and Doctrines of the ...

Edward Turner - 1840 - 696 páginas
...solution evaporated to perfect dryness. The soluble parts are taken up in hot water ; an excess of carbonate of ammonia is added ; and the insoluble...mineral, excepting the fixed alkali, are collected on a 61ter. The clear solution is evaporated to dryness in a porcelain capsule, and the dry mass is heated...
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A Manual of Chemistry on the Basis of Dr. Turner's Elements of Chemistry ...

John Johnston - 1843 - 586 páginas
...solution evaporated to perfect dryness. The soluble parts are taken up in hot water ; an excess of carbonate of ammonia is added ; and the insoluble...platinum, in order to expel the salts of ammonia. This residue is chloride of potassium or sodium. In this analysis, it generally happens that traces...
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A Manual of Chemistry on the Basis of Dr. Turner's Elements of Chemistry ...

John Johnston - 1846 - 496 páginas
...the solution evaporated to perfect dryness. The soluble parts are taken up in hot water; an excess of carbonate of ammonia is added ; and the insoluble...platinum, in order to expel the salts of ammonia. This residue is chloride of potassium or sodium. The analysis is attended with considerable inconvenience...
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